/Engine/Source/Runtime/NavigationSystem/Public/NavigationOctree.h
Append new data to existing node
void AppendToNode ( const [FOctreeElementId2](API\Runtime\Core\Math\FOctreeElementId2) & Id, [INavRelevantInterface](API\Runtime\Engine\AI\Navigation\INavRelevantInterface) * NavElement, const FBox & Bounds, [FNavigationOctreeElement](API\Runtime\NavigationSystem\FNavigationOctreeElement) & Data )